Justin Dunn: Everything you need to know

The Royals released Dunn on Sunday. Dunn saw big-league action over parts of four seasons with the Mariners and Reds from 2019 through 2022, but he hasn't gained much momentum in earning another look in the majors while he's struggled to bounce back from September 2023 shoulder surgery. After getting cut by the White Sox in late May, Dunn has now been released from his minor-league deal by a second organization this season. Over 54 total innings in the minors this season, Dunn has logged a 9.67 ERA and 2.17 WHIP while walking 45 batters.

Dunn signed a minor-league contract with the Royals on Thursday, Jaylon T. Thompson of The Kansas City Star reports. Dunn spent the start of the 2025 season with the White Sox, but he was released by the team on May 28. He'll likely report to Triple-A Omaha, though it's unclear if he'll work as a starter or reliever.

The White Sox reassigned Dunn to minor-league camp Monday. Dunn previously made 32 big-league starts from 2019 through 2022 with the Mariners and Reds, but he faced long odds to break camp with the White Sox after missing most of the last two seasons due to shoulder problems. The 29-year-old righty has stayed healthy in camp and has been effective over his four Cactus League appearances, allowing just one earned run on three hits and four walks while striking out two over eight innings. If Dunn can carry that success over to Triple-A Charlotte to begin the season, he could put himself in consideration for a promotion to the big club.